基于邻菲罗啉衍生物FIP配体的Mn(Ⅱ)、Co(Ⅱ)配合物的合成及其晶体结构

以邻菲罗啉衍生物2-(2-呋喃基)咪唑[4,5-f]1,10-邻菲罗啉(FIP)和己二酸(ADA)为配体,在水热条件下,合成配合物[Mn3(ADA)3(FIP)2]n(1)和[Co3(ADA)3(FIP)2]n(2),经元素分析、红外光谱、热重和X-射线单晶衍射等进行表征。1属三斜晶系,空间群p-1,晶胞参数a=8.640(3),b=10.229(4),c=14.918(5),α=98.636(6)°,β=106.240(6)°,γ=107.040(6)°,Z=2,Dc=1.659 g·cm-3;2属三斜晶系,空间群p-1,晶胞参数a=8.695(2),b=10.010(2),c=14.800(4),α=71.742(4)°,β=73.540(4)°,γ=73.402(4)(6)°,Z=2,Dc=1.713g·cm-3。1和2的结构相似,Mn(Co)(1)中心是被来自一个FIP的两个N原子和三个ADA的四个O原子所绑定,Mn(Co)(2)中心是被来自六个ADA的六个O原子配位,两个Mn(Co)中心展示了扭曲八面体的配位结构,配合物中存在氢键和π-π堆积等弱的分子间作用力CCDC:1:1486701;2:1486702。     

含八核水簇的二维超分子配合物[Fe（phen）3]（tiron）·4H2O的合成及其晶体结构

用钛铁试剂(Na2tiron)、邻菲罗啉和硝酸铁反应合成了一种超分子配合物[Fe(phen)3](tiron).4H2O。利用元素分析、红外光谱和X-射线单晶衍射分析进行了表征。晶体结构分析表明,配合物晶体属三斜晶系,空间群P-1,晶胞参数a=12.8789(12),b=13.3808(13),c=14.859(2),α=104.558(2)°,β=100.780(2)°,γ=107.5760(10)°,V=2264.8(5)3,Z=2。配合物晶体结构中,有机基团和结晶水通过氢键和π-π堆积作用扩展为二维超分子体系,其中结晶水通过氢键作用形成八核簇。     

卤离子调控的新型铜(Ⅰ)配合物的合成及其晶体结构

以4-氨基-3,5-二(4-吡啶基)-1,2,4-三唑(4-abpt)和Cu Cl2(或Cu Br2)为原料,经水热法合成了2个新型的配合物[Cu2Cl2(4-abpt)]n(1)或[Cu2Br2(4-abpt)]n(2),其结构经元素分析和X-单晶衍射表征。1和2均属单斜晶系,空间群分别为Cc和P2(1)/c。1的晶胞参数a=16.141(3),b=7.280(15),c=11.902(2),β=97.11(3)°,V=1 387.8(5)3,Z=4,Dc=2.088 g·cm-3,R1=0.057 2,ωR2=0.109 2。2的晶胞参数a=9.591(19),b=9.861(2),c=18.460(5),β=119.61(2)°,V=1 517.9(6)3,Z=4,Dc=2.298g·cm-3,R1=0.077 3,ωR2=0.119 9。1和2中的4-abpt均通过μ3-桥联模式连接三个Cu(Ⅰ);不同的卤素离子决定1和2具有不同的晶体结构。     

新型N-杂环卡宾银(金)配合物的合成及其晶体结构

以N-杂环卡宾——1,3-双(苄基)苯并咪唑盐酸盐(L1)和1,3-双(苄基)苯并咪唑六氟磷酸盐(L2)为配体,Ag和Au为中心金属原子,经金属交换反应合成了两个新型的N-杂环卡宾金属配合物{[Ag(L1)2]BF4(1)和[Au(L2)2]BF6(2)}。1和2的结构经1H NMR,13C NMR,元素分析和X-单晶衍射表征。1(CCDC:992 423)和2(CCDC:1 047 285)均属三斜晶系,P-1空间群。1的晶胞参数a=8.371(10),b=11.006(14),c=11.335(15),α=107.756(3)°,β=93.266(2)°,γ=112.155(3)°,V=903.5(2)3,Z=1,Dc=1.455 g·cm-3,R1=0.051 0,ωR2=0.122 8。2的晶胞参数a=8.398(10),b=10.722(15),c=11.705(18),α=70.122(2)°,β=87.642(2)°,γ=69.591(2)°,V=925.4(2)3,Z=1,Dc=1.684 g·cm-3,R1=0.037 3,ωR2=0.096 6。1和2均为中心金属原子与2个配体的卡宾碳原子形成二配位体的结构模式。     

席夫碱锰(Ⅱ)配合物的合成及结构表征

由乙酰丙酮和1R,2R-环己二胺缩合得到N,N’-双(乙酰丙酮)-1R,2R-环己二胺的席夫碱配体L,然后与MnCl2.4H2O进行配位反应,得到了配合物[Mn(L)Cl2]n.nH2O,并用元素分析、FT-IR和X-射线单晶衍射进行了表征。结果表明,配合物属于单斜晶系,空间群P21,晶体学参数:a=9.2719(14),b=18.871(3),c=24.767(4),β=98.346(4),Z=2,Dc=0.854g.cm-3,F(000)=1164,R1=0.1201,wR2=0.2968[Ⅰ>2σ(Ⅰ)]。在配合物中,每个Mn(Ⅱ)的配位环境都是三角双锥,每个Mn(Ⅱ)离子同时与3个配体配位,每个配体L通过其两臂乙酰丙酮亚胺单元的端基氧原子同2个金属离子配位桥连形成二维网状结构。     

Cu(Ⅰ)配位聚合物[Cu_3(CN)_3(3-pytpy)]_n的合成、晶体结构及其荧光性质

在160℃下,以4'-(4-吡啶基)-3,2'∶6',3″-三联吡啶(3-pytpy)为配体,Cu(OAc)2·H2O为金属盐,通过水热法在乙腈/水的混合溶剂中合成了一个Cu(Ⅰ)配位聚合物[Cu3(CN)3(3-pytpy)]n(1)。通过元素分析、红外光谱、X-射线粉末衍射和热重分析对所合成的配合物进行了表征,并用X-射线单晶衍射分析确定了晶体结构。结果表明,其晶体属单斜晶系,空间群为P21/c,Mr=579.03,a=7.132(6),b=17.431(13),c=18.388(13),β=94.284(14)°,V=2280(3)3,F(000)=1152,Z=4,μ=2.799mm-1,Dc=1.687g/cm3,最终残差因子R1=0.0447,wR2=0.1238。Cu(Ⅰ)均为畸变三角形配位模式,配位原子分别为三联吡啶配体吡啶环上的N原子、CN-基N原子和另一个CN-基C原子。CN-基桥联Cu(Ⅰ)离子形成沿ac平面对角线方向延伸的一维内消旋螺旋链[Cu(Ⅰ)-CN]n,配体3-pytpy则进一步桥联这些一维链形成二维"波浪型"网络结构,2D层以ABAB方式堆积并通过吡啶环间的π…π堆积作用拓展为三维超分子结构。     

新型双核三氯桥二价β-二亚胺基镱氯配合物的合成及其晶体结构

在THF中,1,5-二甲基-2,4-二-(2,6-二异丙基苯基)-2-异戊烯基钠(L2,6-iPrNa)与YbCl3反应制得YbL2,6-iPrCl2·2THF(1);1在THF中于55℃经Na/K还原合成了一个新型的含有三氯桥的混价双核配合物——(YbL2,6-iPr)2(μ-Cl)3·2THF(2),其结构经IR,X-射线单晶衍射和元素分析表征。2属单斜晶系,空间群C2/c,晶胞参数a=49.823(7),b=12.574 9(15),c=22.368(3),β=102.974(4)°,Z=8,R1=0.064 5,R2=0.138 6。     

金属配位聚合物[Mn2（C8H3NO6）2(C12H8N2)2]n的合成及其催化氧化性能

以5-硝基间苯二甲酸,1,10-邻菲啰啉,硫酸锰(MnSO4.H2O)为原料合成了一种结构新颖的金属配位聚合物——[Mn2(C8H3NO6)2(C12H8N2)2]n(1),其结构经IR,XRD,TG-DTG和元素分析表征。X-射线单晶衍射测试结果表明,1属三斜晶系,空间群Pī,晶胞参数a=10.060 2(1),b=14.343 5(2),c=14.663 7(2),α=104.052(1)°,β=102.633(1)°,γ=110.460(1)°,Mr=888.52,V=1 812.69(4)3,Z=2,Dc=1.628 g.cm-3,F(000)=900。以30%H2O2为氧化剂,初步研究了1在苯乙烯氧化反应中的催化氧化性能。     

异金属配合物{[AgCu(acac)_2SbF_6]_n}的合成及其晶体结构

乙酰丙酮(acac)和醋酸铜经配位反应制得配合物Cu(acac)2(1);1与AgSbF6经配位反应合成了异金属配合物[Ag Cu(acac)2Sb F6]n(2),其结构经FT-IR,元素分析和X-射线单晶衍射表征。2(CCDC:1 012 635)属单斜晶系,空间群C2/c,晶体参数a=14.154 0(8),b=9.323 8(6),c=13.048 1(11),β=104.597(2)°,V=1 666.4(2)3,Z=4,Dc=2.413 g·cm-3,R1=0.026 6,wR2=0.066 5。在2的分子结构中,每个Ag(I)为扭曲四面体的配位构型,分别与来自两个1的四个氧原子配位,每个1两边的两个氧原子分别和两个Ag(I)配位桥联形成一维链结构。     

exo-1,6-二羟基-4,9-二甲基-3,8-二氧杂三环[5.3.0.0 ~(2.6)]癸-5,10-二酮的合成及其晶体结构

4-羟基-2,5-二甲基-3(2H)呋喃酮经固相[2+2]光环加成反应高立体选择性地合成了新化合物exo-1,6-二羟基-4,9-二甲基-3,8-二氧杂三环[5.3.0.02.6]癸-5,10-二酮(2),其结构经1H NMR,IR,MS,元素分析和X-单晶衍射表征。2属三斜晶系,空间群Pī(#2),晶胞参数a=6.715(3),b=8.005(5),c=5.910(3),α=102.88(4)°,β=101.26(3)°,γ=77.217(9)°,V=298.4(3)3,Mr=256.25,Dc=1.426 g·cm-3,F(000)=136,μ=1.15 cm-1,Z=1,R1=0.081,wR2=0.117.2为anti-头-尾型exo-[2+2]加成产物。     

多取代1,4-戊二烯-3-醇的合成及其在螺环四氢喹啉衍生物合成中的应用

以取代邻氨基苯甲酸为起始原料,经6步反应合成了7个多取代1,4-戊二烯-3-醇（7a~7g）;以7a~7g为原料,5 mol%FeCl₃为催化剂,CH₂Cl₂为溶剂,于室温反应合成了7个螺环四氢喹啉衍生物（8a~8g）,其结构经¹H NMR, ¹³C NMR, IR和HR-MS(ESI)表征。采用X-射线单晶衍射研究了8d的晶体结构。结果表明：8d的晶胞参数a=14.001(3) , b=12.335(2) , c=11.587(3) , α=90°, β=95.497(2)°, γ=90°, V=1 991.9(7) ³, Z=4, μ=0.182 mm^-1, F(000)=816.0, R[F²>2σ(F²)］=0.053 7, wR(F²)=0.132 5。     

草酸-草酰胺混合桥联Mn(Ⅱ)-Cu(Ⅱ) 一维配合物的合成、晶体结构与磁性

合成了1个草酸-草酰胺混合桥联的双异金属配合物[Cu(L)(H₂O)Mn(C₂O₄)]·4H₂O(H₂L为1,4,8,11-四氮杂环十四烷-2,3-二酮). 配合物由[Cu(Ⅱ)L(H₂O)], Mn(Ⅱ), 草酸根和晶格水分子构成. Mn(Ⅱ)通过草酸根的交替桥联作用形成弯折的中性一维链状骨架[Mn(C₂O₄)]_n, 而Mn(Ⅱ)剩余的2个配位点则由[CuL]上的2个草酰胺氧原子占据, 形成了草酸-草酰胺混合桥联一维双金属配合物. 而Cu(Ⅱ)为五配位, 轴向上由1个水分子占据. 磁性研究表明, 配合物中Cu(Ⅱ)-Mn(Ⅱ)间通过草酰胺传递反铁磁相互作用, 而Mn(Ⅱ)-Mn(Ⅱ)间亦通过草酸根离子存在反铁磁耦合. 通过MAGPACK软件对变温磁化率进行拟合, 得到J_Cu-Mn=-13.1 cm^-1, J_Mn-Mn=-0.87 cm^-1, g=2.01.     

2D coordination polymers of macrocyclic oxamide with polycarboxylates: syntheses, crystal structures and magnetic properties

Five new 2D coordination polymers, [Co(nip)(CuL)(H(2)O)]·CH(3)OH (1), [Mn(ip)(NiL)]·0.63H(2)O (2), [Cu(ip)(CuL)] (3), [Mn(6)(CuL)(6)(btc)(4)(H(2)O)(4)]·7H(2)O (4), and [Cu(CuL)(Hbtc)(H(2)O)] (5)(ML, H(2)L = 2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-diene; H(2)nip = 5-nitroisophthalic acid; H(2)ip = m-isophthalic acid; H(3)btc = 1,3,5-benzenetricarboxylic acid) have been synthesized by a solvothermal method and characterized by single-crystal X-ray diffraction. Complexes 1-5 exhibit different 2D layered structures formed by Co(2)Cu(2) (1), Mn(2)Ni(2) (2), Cu(4) (3), Mn(3)Ni(3) (4), Cu(4) (5) units, respectively, via the oxamide and diverse carboxylic acid bridges. Compounds 1, 2, 3 and 5 are uninodal 4-connected (4, 4)-grids topology, while complex 4 possesses a 2D network with (3, 4)-connected (4(2).8)(4)(4(3).6(2).8)(3) topology. The results of magnetic determination show pronounced antiferromagnetic interactions in 1-4.     

Heterometallic Trinuclear Ni2Zn and Ni2Mn Complexes of Macrocyclic Oxamide: Synthesis and Crystal Structures

Two novel heterometallic trinuclear complexes of macrocyclic oxamide [Mn(NiL)2(HBTC)H2O] (1) and [Zn(NiL)2(HBTC)H2O] (2) (NiL, H2L = 2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien, H3BTC = 1,3,5-benzenetricarboxylic acid) have been solvothermally synthesized and structurally characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. For 1, the crystals crystallize in the monoclinic system, space group P21/c with a = 11.3595(5), b = 23.1498(11), c = 17.2558(8) and =101.2530(10)°. For 2, the crystals crystallize in the monoclinic system, space group P21/c with a = 11.5214(8), b = 20.6566(14), c = 18.4126(13)  and = 92.6770(10)°. The structures of 1 and 2 have oxamido-bridged trinuclear [NiⅡ2MⅡ] units and consist of two-dimensional supramolecular architectures formed by strong O-H…O intermolecular hydrogen bonds.     

基于草酰胺配体的新型异双核配合物的合成及其晶体结构

以草酰胺铜配合物CuL(H₂L=2,3-二氧-5,6 :13,14-二联苯基-9,10-环己基-1,4,8,11-四氮杂十四环-7,12-二烯烃)为前驱配体,1,10-邻菲啰啉为端接配体,高氯酸锰为金属核心,经回流反应合成了一个新型的异双核配合物［CuLMn(phen)₂］(ClO₄)₂·2CH₃OH(1),其结构和性能经UV-Vis, IR,元素分析,X-射线粉末衍射和X 射线单晶衍射表征。结果表明：1(CCDC: 1 445 582)属三斜晶系,空间群P-1,晶胞参数a=11.298(19) , b=15.17(4) , c=16.71(3) ,α=113.69(3), β=109.30(2), γ=93.08(4), V=2 417(9) ³, Z=2。 1在DMF中的最大吸收峰位于272 nm和361 nm。     

Complexation and Thermal Studies of Uric Acid with Some Divalent and Trivalent Metal Ions of Biological Interest in the Solid State

Nine new [metal uric acid] complexes [M(Ua) n ]°·XH 2 O have been synthesized. These complexes have been characterized by elemental analysis, X-ray diffraction (XRD), magnetic susceptibility ( w eff. ), FTIR spectra, thermal analysis (TG & DTA), and electronic spectra (UV/visible). Uric acid (HUa) coordinates as a bidentate ligand to Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Al(III), Cr(III) and Fe(III) through the protonated N-7 within the imidazole ring and O-6 within the pyrimidine ring. Uric acid forms neutral metal urate complexes with all the above metal ions. The quantitative compositions were determined as [M(Ua) 2 ·(H 2 O) 2 ]°·XH 2 O where M(II)=Mn, Fe, Co, Ni, Cu, Zn and X=2, 4, 2, 4, 2, 2, respectively. The M(II) complexes exhibit an isostructural octahedral coordination with N-7, O-6 of two uric acid ligand molecules, and O of two water molecules. Compositions were also determined as [M(Ua) 3 ]°·YH 2 O where M(III)=Al, Cr, Fe and Y=6, 3, 3 respectively. All the M(III) complexes form an isostructural octahedral coordination with N-7 and O-6 of three uric acid ligand molecules. Iron(III) complexes prepared with N 1 , N 3 and N 9 -methyl uric acid yielded brown complexes with a metal ligand ratio of 1 3, while N 7 -methyl uric acid did not yield a complex due to blockage of N-7 with a methyl group.     

Heteronuclear complexes of macrocyclic oxamide with co-ligands: syntheses, crystal structures, and magnetic properties

Four heteronuclear complexes Mn(CuL)2(SCN)2 (1), {[Mn(CuL)2(mu-dca)2].2H2O}n (2), Zn(CuL)2(SCN)2 (3), and [Fe(CuL)(N3)2]2 (4) incorporating macrocyclic oxamide ligands have been synthesized and structurally characterized. L is the dianion of diethyl 5,6,7,8,15,16-hexahydro-6,7-dioxodibenzo[1,4,8,11]-tetraazacyclotetradecine-13,18-dicarboxylate, and dca is the dicyanamide. The structure of 1 or 3 consists of oxamido-bridged trinuclear [MIICuII2] molecules (for 1, M is the manganese(II) ion, and for 3, M is the zinc(II) ion). Both of them consist of 1D supramolecuar chains via pi-pi interactions. The structure of 2 also has the oxamido-bridged trinuclear [MnIICuII2] structure units and consists of 2D layers formed by the linkage of copper(II) and manganese(II) atoms via the oxamido and mu1, 5-dca bridges. Complex 4 consists of oxamido-bridged tetranuclear [FeII2CuII2] molecules and arranges in 1D chains. Different co-ligands may result in different structures in this macrocyclic oxamide system. The variable-temperature magnetic susceptibility measurements (2-300 K) of 1 and 2 both show the pronounced antiferromagnetic interactions between the copper(II) and manganese(II) ions.     

Novel Copper（Ⅱ） and Zinc（Ⅱ） 2-D Supramolecular Structures Based on Carboxylate and 1-Substitutedimidazole Mixed-ligands

Using the ligand bis(3-(1H-imidazol-1-yl)-1-phenylpropan-1-one) L, two novel com- plexes [CuL2(ph))]·H2O 1 and [ZnL2(tp)] 2 (ph = phthalic acid, tp = terephthalic acid) have been synthesized and their crystal structures were determined by single-crystal X-ray diffraction analysis. Crystal data for 1: triclinic, space group P1, a = 9.4300(17), b = 12.148(2), c = 13.721(2) , α = 109.620(2), β = 94.351(2), γ = 94.830(2)°, C32H30N4O7Cu, Mr = 646.14, V = 1466.2(4) 3, Z = 2, Dc = 1.464 g/cm3, μ(MoKα) = 0.801 mm-1, F(000) = 670, the final R = 0.0337 and wR = 0.0859 for 5122 observed reflections with I > 2σ(I). And those for 2: monoclinic, space group P2/n, a = 7.1866(11), b = 14.144(2), c = 14.407(2) , β = 101.427(2)°, C32H28N4O6Zn, Mr = 629.95, V = 1435.4(4) 3, Z = 2, Dc = 1.457 g/cm3, μ(MoKα) = 0.908 mm-1, F(000) = 652, the final R = 0.0438 and wR = 0.0821 for 2546 observed reflections with I > 2σ(I). In 1 and 2, ph or tp ligands bridge the six-coordinated copper(II) or four-coordinated zinc(II) ions forming 1D zigzag chains while L ligands act as the terminal monodentate ligand. It is noted that weak non-classical C–H···O plays the important and dominating roles in the formation of 2D supramolecular architectures of 1, but in 2 non-classical C–H···O and aromatic π-π stacking interactions are quite important and play dominant roles in the self-assembly of 2D supramolecular architectures.     

Synthesis,crystal structure and magnetic properties of a new macrocyclic trinuclear CuII-CuII-CuII complex

A new oxamido-bridged trinuclear copper(II) complex [(CuL)₂Cu](ClO₄)₂·0.5H₂O (L?=?the dianion of 2,3-dioxo-5,6,14,15-dibenzo-7,13-bis(ethoxycarbonyl)-1,4,8,12-tetraazacyclotetradeca-7,12-diene) has been synthesized by self-assembly and characterized. X-ray diffraction analysis reveals that the title complex is monoclinic, space group P2₁, with a?=?16.213(5), b?=?9.811(3), c?=?18.802(6)?Å, β?=?96.790(5)°. The central copper(II) ion lies in a distorted octahedral environment. Terminal coppers have square pyramidal coordination geometry. Magnetic measurements show there is strong antiferromagnetic interaction between the central and the terminal Cu(II) ions.     

铜(II)-锰(II)四核配合物的合成、晶体结构和磁性

(中国地质大学地质实验室, 北京100083) 报道了一个草酰胺桥连的四核Cu(II)Mn(II)配合物[Mn(CuL)3][Mn(H2O)6][N(CN)2]2(ClO4)2 4H2O (L为1,4,8,11-四氮杂环十四烷-2,3-二酮) (C34H74Cl2Cu3Mn2N18O24, Mr = 1490.51)的合成、晶体结构和磁性。配合物属于单斜晶系, 空间群为C2/c, 晶胞参数如下:a = 22.295(5), b = 12.852(3), c = 20.109(4) , = 90.47(3), V = 5762(2) 3, Dc = 1.718 g/m3, Z = 4, F(000) = 3068, m = 1.701mm-1, R = 0.0915, wR = 0.1810 (based on F2)。3个中性Cu(II)大环配合物通过6个氧原子与Mn(II)配位, MnO键长范围为2.190(6)~2.208(5) 拧Mn(CuL)3]2+通过高氯酸根离子连接起来形成一个二维层。高氯酸根的氧原子与CuII键长范围为2.902~2.996 , 为弱相互作用。[Mn(H2O)6]2+, N(CN)2-和H2O位于层间, 并通过氢键连成三维网络结构。磁性研究表明CuII-MnII离子间通过草酰胺传递反铁磁相互作用, 用基于各向同性的Hamiltonian算符 = 2JMnCuMn(Cu1 + Cu2 + Cu3)进行磁性拟合得到磁耦合常数JCuMn =-17 cm-1。